9m shows a 3.6l with "...stock 9m billet heads & 9m ITBs, all run headers (of various design), all run on Motec." that generates 350 hp on the dyno. See
https://rennlist.com/forums/993-forum/749250-ultimate-street-engine-4.html (green dyno line).
Hoping someone can chime in on details of this build....(ninemeister???)